# C++ keyword: `return`

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< cpp‎ | keyword

### Usage

- `return` statement: as the declaration of the statement

### Example

Run this code

    #include <cstdlib>
    #include <iostream>

    [[nodiscard]] constexpr auto clamp(int value, int min, int max) noexcept
    {
        if (value <= min)
            return min;
        else if (max <= value)
            return max;

        return value;
        // won't be executed past 'return' statement

        std::exit(value);
    }

    int main() noexcept
    {
        std::cout << clamp(1, 2, 4);
        std::cout << clamp(3, 2, 4);
        std::cout << clamp(5, 2, 4);

        return 0; // the value '0' that in main() indicates a success
    }

Output:

    234

### See also

- `if` statement: `if`, `else`

`constexpr` `if` statement: `constexpr` (`constexpr` `if` statement) | (since C++17)
`consteval` `if` statement: `consteval` (`consteval` `if` statement) | (since C++23)

- `switch` statement: `switch`, `case`
- `default` (as case label declaration) etc: `default`
- `goto` statement: `goto`
- `continue` statement: `continue`
- `break` statement: `break`

`co_return` statement (return from a coroutine): `co_return` | (since C++20)

- `do-while` loop and `while` loop: `do`, `while`
- `for` loop and range-based `for` loop: `for`

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